Give meshes a higher priority when loading

[libs/gl.git] / source / resourcemanager.cpp

diff --git a/source/resourcemanager.cpp b/source/resourcemanager.cpp
index c6e3f357b9ce67b6f72fef04f30b5ff5e96483ab..7d5d752b2351a3607e17b953212d981cde1c1792 100644 (file)
--- a/source/resourcemanager.cpp
+++ b/source/resourcemanager.cpp
@@ -4,6 +4,7 @@
 #include <msp/strings/format.h>
 #include <msp/time/utils.h>
 #include "resourcemanager.h"
+#include "resources.h"
 #include "resourcewatcher.h"
 
 using namespace std;
@@ -11,6 +12,10 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
+resource_load_error::resource_load_error(const string &name, const string &err):
+       runtime_error(format("%s: %s", name, err))
+{ }
+
 resource_load_error::resource_load_error(const string &name, const exception &exc):
        runtime_error(format("%s: %s: %s", name, Debug::demangle(typeid(exc).name()), exc.what()))
 { }
@@ -70,19 +75,29 @@ void *ResourceManager::get_data_for_resource(const Resource &r)
 }
 
 void ResourceManager::set_resource_location(Resource &r, DataFile::Collection &c, const string &n)
+{
+       set_resource_location(r, ResourceLocation(c, n));
+}
+
+void ResourceManager::set_resource_location(Resource &r, const ResourceLocation &l)
 {
        ManagedResource &managed = get_item(resources, &r);
-       managed.collection = &c;
-       managed.name = n;
+       managed.location = l;
 
        if(policy==LOAD_IMMEDIATELY)
                load_resource(r);
 }
 
+const ResourceManager::ResourceLocation *ResourceManager::get_resource_location(const Resource &r) const
+{
+       const ManagedResource &managed = get_item(resources, &r);
+       return managed.location.collection ? &managed.location : 0;
+}
+
 void ResourceManager::load_resource(Resource &r)
 {
        ManagedResource &managed = get_item(resources, &r);
-       if(!managed.collection)
+       if(!managed.location.collection)
                throw runtime_error("no location");
 
        if(managed.state!=ManagedResource::NOT_LOADED)
@@ -91,7 +106,9 @@ void ResourceManager::load_resource(Resource &r)
        if(async_loads)
        {
                managed.state = ManagedResource::LOAD_QUEUED;
-               queue.push_back(&managed);
+               LoadQueue::iterator i;
+               for(i=queue.begin(); (i!=queue.end() && (*i)->load_priority>=managed.load_priority); ++i) ;
+               queue.insert(i, &managed);
        }
        else
        {
@@ -101,9 +118,17 @@ void ResourceManager::load_resource(Resource &r)
        }
 }
 
+bool ResourceManager::is_resource_loaded(const Resource &r) const
+{
+       ManagedResource *managed = reinterpret_cast<ManagedResource *>(r.get_manager_data());
+       return managed ? managed->state==ManagedResource::LOADED : false;
+}
+
 void ResourceManager::resource_used(const Resource &r)
 {
        ManagedResource *managed = reinterpret_cast<ManagedResource *>(r.get_manager_data());
+       if(!managed)
+               return;
        if(managed->state==ManagedResource::NOT_LOADED && policy!=LOAD_MANUALLY)
                load_resource(*managed->resource);
 
@@ -236,9 +261,19 @@ bool ResourceManager::age_order(ManagedResource *mr1, ManagedResource *mr2)
 }
 
 
+ResourceManager::ResourceLocation::ResourceLocation():
+       collection(0)
+{ }
+
+ResourceManager::ResourceLocation::ResourceLocation(DataFile::Collection &c, const string &n):
+       collection(&c),
+       name(n)
+{ }
+
+
 ResourceManager::ManagedResource::ManagedResource(Resource &r):
        resource(&r),
-       collection(0),
+       load_priority(r.get_load_priority()),
        io(0),
        loader(0),
        state(NOT_LOADED),
@@ -248,8 +283,12 @@ ResourceManager::ManagedResource::ManagedResource(Resource &r):
 
 void ResourceManager::ManagedResource::start_loading()
 {
-       io = collection->open_raw(name);
-       loader = resource->load(*io);
+       io = location.collection->open_raw(location.name);
+       if(!io)
+               throw resource_load_error(location.name, "open failed");
+
+       const Resources *res = dynamic_cast<Resources *>(location.collection);
+       loader = resource->load(*io, res);
        if(!loader)
        {
                delete io;
@@ -344,7 +383,7 @@ void ResourceManager::LoadingThread::main()
                        catch(const exception &e)
                        {
                                MutexLock lock(queue_mutex);
-                               error_queue.push_back(resource_load_error(managed->name, e));
+                               error_queue.push_back(resource_load_error(managed->location.name, e));
                                managed->state = ManagedResource::LOAD_ERROR;
                        }